Lake Worth Lagoon - Palm Beach Coast Group 3 BasinsVerified ListOGC CaseNumberPlanning Unit WBIDWater SegmentNameWaterbodyTypeWaterbodyClass11998 303(d)Parameters ofConcernNew Parameters ofConcern from IWRConcentration CausingImpairment2Priority forTMDLDevelopment3Projected Year forTMDLDevelopment3Comments(# Exceedances/# Samples)PP=Planning Period VP=Verified Period4C-153262ALAKE IDALAKE 3F Nutrients (TSI)Median TN = 1.14 mg/LMedian TP = 0.114 mg/LMedium 2010PP = No data; VP = Impaired Co-limited based ona TN/TP median of 11.43 (10 values) during thePP and a median of 10.95 (17 values) during theVP. VP - 1 TSI annual mean exceeded 60 (2002).17 TN values, median 1.14 mg/L. 17 TP values,median 0.114 mg/L.C-153262DE-3 CANALSTREAM 3FDissolved OxygenDissolved Oxygen< 5.0 mg/lMedium 2010PP = 16 / 59 Planning list ; VP = 11 / 31 Impaired.VP taken from IWR Run 20.0. Linked to nutrients,Co-limiting of nitrogen and phosphorous. TNMedian during VP = 1.431. TP Median during VP= 0.141.C-173242APB STATIONS /DCANALSSTREAM 3F Dissolved Oxygen < 5.0 mg/l Medium 2010PP = 65 / 137 Potentially Impaired; VP = 37 / 99Impaired Linked to nutrients, co-limitation ofnitrogen and phosphorus, TN during VP = 1.016mg/L, TP during VP = 0.053 mg/L.C-173242APB STATIONS /DCANALSSTREAM 3FNutrients (Chl-a)Median TN = 1.016 mg/LMedian TP = 0.053 mg/LMedium 2010PP = Insufficient Data; VP = Impaired, with oneannual mean chl a value above 20 ug/l in 2002, chla mean = 24.571 ug/L. Co-limiting of nitrogen andphosphorus based upon TN/TP ratio. TN median= 1.106 mg/L and TP median = 0.053 mg/L. PPmedian TN/TP ratio = 18.603 (200 values), VPmedian TN/TP ratio = 18.603 (114 values).C-513245C-51STREAM 3FDissolved OxygenDissolved Oxygen < 5.0 mg/l Medium 2010PP = 455 / 757 Potentially Impaired; VP = 393 /620 Impaired Linked to elevated TN level. TNabove the screening level for both the PP and VP.(TN during PP median 1.706 mg/l and; TN duringVP median 1.89 mg/l).C-513245BLAKE CLARKELAKE 3F Dissolved Oxygen < 5.0 mg/l Medium 2010PP = 57 / 113 Potentially Impaired; VP = 40 / 86Impaired No BOD or Biological data available.Linked to nutrients, co-limiting of nitrogen andphosphrous. During PP TN median = 1.336 mg/L,TP median = 0.079 mg/L, during VP TN median =1.379 mg/L, TP median = 0.081 mg/L.C-513245BLAKE CLARKELAKE 3F Nutrients (TSI)MedianTN = 1.3785 mg/LMedian TP = 0.081 mg/LMedium 2010PP = No Data; VP = Impaired TSI mean of 62.45during VP, TN = 1.336 mg/L (190 values) and TP =0.079 mg/L (191 values) in PP; TN = 1.3785 mg/L(106 values) and TP 0.081 mg/L (106 values) inVP.HILLSBOROCANAL3264DE-4 CANALSTREAM 3FNutrients Nutrients (Chl-a)Median TN = 0.95 mg/LMedian TP = 0.1595 mg/LMedium 2010PP = Insufficient Data; VP = Impaired, with oneannual mean chl a value above 20 ug/L in 2002,chl-a mean = 27.825 ug/L. Co-limiting of nitrogenand phosphorus based upon TN/TP ratios [TNmedian = 0.95 mg/L and TP median = 0.1595mg/L., VP median TN/TP ratio = 5.87 (10 obs).INTRACOASTAL3226FICCW ABOVEPOMPANOESTUARY 3M Copper > 3.7 mg/L Medium 2010PP = 2 / 2 Insufficient Data; VP = 14 / 40 Impaired.VP data have been updated using IWR Run 20.0.June 1, 20051 of 2Florida Department of Environmental ProtectionLake Worth Lagoon - Palm Beach Coast Group 3 BasinsVerified ListOGC CaseNumberPlanning Unit WBIDWater SegmentNameWaterbodyTypeWaterbodyClass11998 303(d)Parameters ofConcernNew Parameters ofConcern from IWRConcentration CausingImpairment2Priority forTMDLDevelopment3Projected Year forTMDLDevelopment3Comments(# Exceedances/# Samples)PP=Planning Period VP=Verified Period4INTRACOASTAL3226F2ICCW ABOVEPOMPANOESTUARY 3M Copper > 3.7 mg/L Medium 2010PP = 1 / 6 Insufficient data; VP = 9/ 48 Impaired.VP data have been updated using IWR Run 20.0.INTRACOASTAL8096BHILLSBORO INLETPARKCOASTAL 3M Historic ChlorophyllMedian TN =0.6968,Median TP = 0.058Medium 2010PP = Potentially Impaired; VP = Impaired. For thehistorical listing (1996-2000), annual average Chl-avalues in the verified period exceeded theminimum historical annual average value of 1.76ug/l by more than 50% in 2000 (3.55 ug/l), 1999(2.98 ug/l). Co-limiting of nitrogen andphosphorus based upon TN/TP ratio. TN median= 0.6968 mg/L and TP median = 0.058 mg/L. PPmedian TN/TP ratio = 19.086 (33 values), VPmedian TN/TP ratio = 10.471 (15 values).L-83233L-8STREAM 3FDissolved OxygenDissolved Oxygen < 5.0 mg/l High 2005PP = 88 / 165 Potentially Impaired; VP = 62 / 136Impaired Linked to elevated TN level. TNabove the screening level for both the PP and VP.(TN during PP median 1.826 mg/l and; TN duringVP median 1.951 mg/l).L-8 3233L-8STREAM 3FTurbidityTurbidity > 34.6 NTU High 2005PP = 59 / 168 Potentially Impaired; VP = 59 / 131Impaired. Using 20th percentile (5.6) thebackground value = 34.6 NTU. 51 / 131 valueswere above the background value during theverified period. Note that 49 of the values are fromStation 21FLSWMCULV10A.SOUTHEASTCOAST8998FLORIDA ATLANTICCOASTCOASTAL 3MMercury (in FishTissue)Exceeds DOHthreshhold (> 0.5 mg/kg)Low 2011Data verified to be within the last 7.5 years.Confirmed recent data for coastal fish advisory forKing Mackerel, Shark, Spotted Seatrout, LittleTunny, Cobia, Greater Amberjack, Bluefish,Crevalle Jack. WBIDs include: 3226EA, 3226EB,3226E1, 8096, 8096A, 8096B, 8096C, 8096D,8096E, 8097, 8097A, 8098, 8098A, 8098B, 8099,8099A, 8100, 8100A, 8100B, 8100C.1Florida's waterbody classifications are defined as:1- Potable water supplies,2- Shellfish propagation or harvesting,3F- Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlifein fresh water, 3M - Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife in marine water, 4 - Agricultural water supplies, 5 - Navigation, utility, and industrial use.if it was originally high or changed to medium if it was originally low. In the case of mercury, the priority remains low. Where a parameter was only identified as impaired under the IWR, priorities of high, medium, or low were used.4PP - Planning Period (January 1, 1992 through December 31, 2001); VP - Verified Period (January 1, 1997 through June 30, 2004)Unless otherwise noted, the Lake Worth Lagoon Verified List was created using Run 17 of the IWR Analysis.2"ln H" means the natural logarithm of total hardness expressed as mg/L of CaCO3. For metals criteria involving equations with hardness, the hardness shall be set as 25 mg/L if actual hardness is < 25mg/L and setat 400 mg/L if actual hardness is > 400 mg/L. The concentration causing impairment for nutrient listings is the median.3Priority and schedule for this WBID reflects the priority established for the WBID in the 1998 303(d) list. Where a parameterwas 1998 303(d) listed, the priority shown for it in the 1998 303(d) list was retainedJune 1, 20052 of 2Florida Department of Environmental Protection